String getId();

    String getDependencyConflictId();

    void addMetadata(ArtifactMetadata metadata);

    Collection<ArtifactMetadata> getMetadataList();

    void setRepository(ArtifactRepository remoteRepository);

    ArtifactRepository getRepository();

    void updateVersion(String version, ArtifactRepository localRepository);

    String getDownloadUrl();

    void setDownloadUrl(String downloadUrl);

    }

    @Override
    public List<ArtifactVersion> retrieveAvailableVersionsFromDeploymentRepository(
            Artifact artifact, ArtifactRepository localRepository, ArtifactRepository remoteRepository) {
        return Collections.singletonList(new DefaultArtifactVersion("10.1.3"));
    }

    @Override
    public ResolutionGroup retrieve(MetadataResolutionRequest request) {

import java.util.stream.Stream;

import org.apache.maven.api.Language;
import org.apache.maven.api.ProducedArtifact;
import org.apache.maven.api.Project;
import org.apache.maven.api.ProjectScope;
import org.apache.maven.api.RemoteRepository;
import org.apache.maven.api.Service;
import org.apache.maven.api.Session;
import org.apache.maven.api.SourceRoot;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;

        return false;
    }

    @Override
    public ArtifactRepository getRepository() {
        return null;
    }

    @Override
    public void setRepository(ArtifactRepository remoteRepository) {
        // intentionally blank
    }

    }

    @Override
    public List<ArtifactVersion> retrieveAvailableVersionsFromDeploymentRepository(
            Artifact artifact, ArtifactRepository localRepository, ArtifactRepository remoteRepository)
            throws ArtifactMetadataRetrievalException {
        throw new UnsupportedOperationException("Cannot get available versions in this test case");
    }

    @Override

        }

        @Override
        public List<ArtifactVersion> retrieveAvailableVersionsFromDeploymentRepository(
                Artifact artifact, ArtifactRepository localRepository, ArtifactRepository remoteRepository)
                throws ArtifactMetadataRetrievalException {
            return retrieveAvailableVersions(artifact);
        }

        private List<ArtifactVersion> retrieveAvailableVersions(Artifact artifact) {